The Panama Csinol. which is now Hearing completion, is to have a novel system of illumination for its lighthouses.' The gus used for the (lame is acetylene, but the sun is to be the la •uptight ev! These lamps will he lit by a lamplighter nearly a. hundred million miles away! The lamps will he fitted with copper cylinders exposed to the air. When the sun rises in the morning, its rays will cause the cylinders to expand, and so dose valves which ndm it gas to the burners. As the sun goes down and the air cools, the copper cylinders will contract. m> opening the valves and admitting g.'is to the burners, where it will be lighted by a small pilot jet resembling the ordinary by-pass.
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https://paperspast.natlib.govt.nz/newspapers/TDN19120511.2.92.2
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Taranaki Daily News, Volume LIV, Issue 270, 11 May 1912, Page 1 (Supplement)
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127Page 1 Advertisements Column 2 Taranaki Daily News, Volume LIV, Issue 270, 11 May 1912, Page 1 (Supplement)
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